Campbell, Calif. – May 7, 2007 – Rainmaker Systems, Inc. (NASDAQ: RMKR), a leading provider of sales and marketing solutions combining hosted application software and execution services, will announce its fiscal 2007 second quarter financial results after the close of regular market trading on Wednesday, August 1, 2007. A press release will be transmitted to the news media immediately following the close of the market on August 1, 2007. The Company will also hold a conference call to discuss the results at 1:30 p.m. Pacific Time (4:30 p.m. ET).

What: Rainmaker 2007 Second Quarter Financial Results Conference Call

When: Wednesday, August 1st at 1:30 p.m. Pacific Time (4:30 p.m. ET)

Webcast: A live and archived web cast of the conference call can be accessed from the investors section of Rainmaker's website at www.rmkr.com or at www.mkr-group.com (under featured events).

Dial In: To access the live conference call, dial (800) 218-0713 and request the "Rainmaker" call.

Replay: An audio replay of the conference call can be accessed at (800) 405-2236. The replay will be available starting two hours after the call and remain in effect for one week through Wednesday, August 8th at 11:59 p.m. Pacific Time. The required pass code is 11092752#.

About Rainmaker
Rainmaker Systems, Inc. delivers sales and marketing solutions, combining hosted application software and execution services designed to drive more revenue for our clients. Our Revenue Delivery Platform^SM combines proprietary, on-demand application software and advanced analytics with specialized sales and marketing execution services. Rainmaker clients include large enterprises in a range of industries, including computer hardware and software, telecommunications, and financial services industries. For more information visit www.rmkr.com or call 800-631-1545.

NOTE: Rainmaker Systems, the Rainmaker logo, Sunset Direct and Contract Renewals Plus are registered with the U.S. Patent and Trademark Office. All other service marks or trademarks are the property of their respective owners.
 
This press release contains forward-looking statements regarding future events. These forward-looking statements are based on information available to Rainmaker as of this date and they assume no obligation to update any such forward-looking statements. These statements are not guarantees of future performance, and actual results could differ materially from current expectations. Among the important factors which could cause actual results to differ materially from those in the forward-looking statements are general market conditions, unfavorable economic conditions, our ability to execute our business strategy, our ability to integrate acquisitions without disruption to our business, the effectiveness of our sales team and approach, our ability to target, analyze and forecast the revenue to be derived from a client and the costs associated with providing services to that client, the date during the course of a calendar year that a new client is acquired, the length of the integration cycle for new clients and the timing of revenues and costs associated therewith, our client concentration given that we are currently dependent on a few significant client relationships, potential competition in the marketplace, the ability to retain and attract employees, market acceptance of our service programs and pricing options, our ability to maintain our existing technology platform and to deploy new technology, our ability to sign new clients and control expenses, the possibility of the discontinuation and/or realignment of some client relationships, and the financial condition of our clients' businesses, and other factors detailed in the Company's filings with the Securities and Exchange Commission, including our filings on Forms 10-K and 10-Q.